I have change mEmulation=true, but MY hardware  still cannot show movie , here 
is the app and catlog:
app:
mMediaPlayer = new MediaPlayer();
            AssetFileDescriptor afd = getResources().openRawResourceFd
            (R.raw.movie);
            Log.v(TAG,afd.toString());
            mMediaPlayer.setDataSource(afd.getFileDescriptor(),
            afd.getStartOffset(), afd.getLength());

          //  mMediaPlayer.setDataSource(path);
            mMediaPlayer.setDisplay(holder);
            mMediaPlayer.setOnPreparedListener(this);
            mMediaPlayer.prepareAsync();
            mMediaPlayer.setOnBufferingUpdateListener(this);
            mMediaPlayer.setOnCompletionListener(this);            
            mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);

catlog:

.I/ActivityManager(  435): Starting activity: Intent { 
comp={com.android.mediaplayer/com.android.mediaplayer.MediaPlayerDemo_Video} 
(has extra}
V/ActivityThread(  579): Resuming ActivityRecord{43708db0 
token=android.os.binderpr...@43708868 
{com.android.mediaplayer/com.android.mediaplaye
D/MediaPlayerDemo(  579): surfaceCreated called
V/MediaPlayerDemo(  579): android.content.res.assetfiledescrip...@4370ed60
I/MediaPlayer-JNI(  579): prepareAsync: surface=0x1712f0 (id=2)
D/MediaPlayerDemo(  579): surfaceChanged called
I/ActivityManager(  435): Displayed activity 
com.android.mediaplayer/.MediaPlayerDemo_Video: 1530 ms
W/PlayerDriver(  419): Using generic video MIO
V/VideoMIO(  419): CloseFrameBuf
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): setParametersSync
D/MediaPlayerDemo(  579): onPrepared called
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): iVideoWidth=176
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): iVideoHeight=144
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): iVideoDisplayWidth=176
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): iVideoDisplayHeight=144
V/VideoMIO(  419): setParametersSync
V/VideoMIO(  419): VIDEO SUBFORMAT SET TO X-YUV-420-PLANAR
V/VideoMIO(  419): CloseFrameBuf
V/VideoMIO(  419): using software codec
V/VideoMIO(  419): video = 176 x 144
V/VideoMIO(  419): frame = 176 x 144
V/VideoMIO(  419): frame #bytes = 50688
D/dalvikvm(  478): GC freed 122 objects / 5512 bytes in 371ms

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